Home / 290,566.86-400,946.40-168,080.28

Finding the Fourth Proportional to 290,566.86, 400,946.40 and 168,080.28

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Solution

The fourth proportional to 290,566.86, 400,946.40 and 168,080.28 is: 231,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,566.86 : 400,946.40 = 168,080.28 : x
  2. Step 2: Convert to fraction form
    290,566.86/400,946.40 = 168,080.28/x
  3. Step 3: Cross multiply
    290,566.86x = 400,946.40 × 168,080.28
  4. Step 4: Simplify right side
    290,566.86x = 67,391,183,176.99
  5. Step 5: Solve for x
    x = 67,391,183,176.99/290,566.86
  6. Step 6: Final answer
    x = 231,930.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.